Improve your writing with rules you can inspect.
Paste your text, choose a style, and Crestmas Write rewrites it using a local library of language rules: trimming wordiness, varying phrasing and tidying transitions. Every change is shown, and anything it cannot change safely is left exactly as you wrote it.
Your text is processed on this server by PHP code and is never sent to an AI service.
Ten writing styles
10 modes, from Natural Rewrite and Academic to Concise and Simple English. Each mode lists exactly which kinds of rules it uses.
Three intensity levels
Conservative, Balanced or Substantial: you decide how much the engine is allowed to change.
Protected text
URLs, e-mail addresses, citations, quotations, numbers, dates, code and your own "Do not change" phrases are never altered.
Side-by-side comparison
See added, removed and changed words, restore the original, or accept the whole revision.
Writing checker
Repeated words, common misspellings, spacing, punctuation and long sentences, each with a clear explanation and Apply or Ignore.
Documents and history
Autosave, version history, search, import and export of TXT and DOCX files.
Honest by design
Rule-based rewriting is careful rather than creative. When no safe rule applies to a sentence, we leave it unchanged and tell you so. We also do not promise that any text will pass, or fail, any AI-detection tool: no honest tool can promise that.
Always read the result before you use it. Automated changes can still alter nuance.
- 472
- active built-in rules today
- 10
- writing modes